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PHP Cross Reference of moodle-2.8 |
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1 <?php 2 /** 3 * PHPExcel 4 * 5 * Copyright (c) 2006 - 2014 PHPExcel 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 * 21 * @category PHPExcel 22 * @package PHPExcel_Reader 23 * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) 24 * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL 25 * @version ##VERSION##, ##DATE## 26 */ 27 28 29 /** PHPExcel root directory */ 30 if (!defined('PHPEXCEL_ROOT')) { 31 /** 32 * @ignore 33 */ 34 define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../'); 35 require (PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php'); 36 } 37 38 /** 39 * PHPExcel_Reader_HTML 40 * 41 * @category PHPExcel 42 * @package PHPExcel_Reader 43 * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) 44 */ 45 class PHPExcel_Reader_HTML extends PHPExcel_Reader_Abstract implements PHPExcel_Reader_IReader 46 { 47 /** 48 * Input encoding 49 * 50 * @var string 51 */ 52 private $_inputEncoding = 'ANSI'; 53 54 /** 55 * Sheet index to read 56 * 57 * @var int 58 */ 59 private $_sheetIndex = 0; 60 61 /** 62 * Formats 63 * 64 * @var array 65 */ 66 private $_formats = array( 'h1' => array( 'font' => array( 'bold' => true, 67 'size' => 24, 68 ), 69 ), // Bold, 24pt 70 'h2' => array( 'font' => array( 'bold' => true, 71 'size' => 18, 72 ), 73 ), // Bold, 18pt 74 'h3' => array( 'font' => array( 'bold' => true, 75 'size' => 13.5, 76 ), 77 ), // Bold, 13.5pt 78 'h4' => array( 'font' => array( 'bold' => true, 79 'size' => 12, 80 ), 81 ), // Bold, 12pt 82 'h5' => array( 'font' => array( 'bold' => true, 83 'size' => 10, 84 ), 85 ), // Bold, 10pt 86 'h6' => array( 'font' => array( 'bold' => true, 87 'size' => 7.5, 88 ), 89 ), // Bold, 7.5pt 90 'a' => array( 'font' => array( 'underline' => true, 91 'color' => array( 'argb' => PHPExcel_Style_Color::COLOR_BLUE, 92 ), 93 ), 94 ), // Blue underlined 95 'hr' => array( 'borders' => array( 'bottom' => array( 'style' => PHPExcel_Style_Border::BORDER_THIN, 96 'color' => array( PHPExcel_Style_Color::COLOR_BLACK, 97 ), 98 ), 99 ), 100 ), // Bottom border 101 ); 102 103 104 /** 105 * Create a new PHPExcel_Reader_HTML 106 */ 107 public function __construct() { 108 $this->_readFilter = new PHPExcel_Reader_DefaultReadFilter(); 109 } 110 111 /** 112 * Validate that the current file is an HTML file 113 * 114 * @return boolean 115 */ 116 protected function _isValidFormat() 117 { 118 // Reading 2048 bytes should be enough to validate that the format is HTML 119 $data = fread($this->_fileHandle, 2048); 120 if ((strpos($data, '<') !== FALSE) && 121 (strlen($data) !== strlen(strip_tags($data)))) { 122 return TRUE; 123 } 124 125 return FALSE; 126 } 127 128 /** 129 * Loads PHPExcel from file 130 * 131 * @param string $pFilename 132 * @return PHPExcel 133 * @throws PHPExcel_Reader_Exception 134 */ 135 public function load($pFilename) 136 { 137 // Create new PHPExcel 138 $objPHPExcel = new PHPExcel(); 139 140 // Load into this instance 141 return $this->loadIntoExisting($pFilename, $objPHPExcel); 142 } 143 144 /** 145 * Set input encoding 146 * 147 * @param string $pValue Input encoding 148 */ 149 public function setInputEncoding($pValue = 'ANSI') 150 { 151 $this->_inputEncoding = $pValue; 152 return $this; 153 } 154 155 /** 156 * Get input encoding 157 * 158 * @return string 159 */ 160 public function getInputEncoding() 161 { 162 return $this->_inputEncoding; 163 } 164 165 // Data Array used for testing only, should write to PHPExcel object on completion of tests 166 private $_dataArray = array(); 167 168 private $_tableLevel = 0; 169 private $_nestedColumn = array('A'); 170 171 private function _setTableStartColumn($column) { 172 if ($this->_tableLevel == 0) 173 $column = 'A'; 174 ++$this->_tableLevel; 175 $this->_nestedColumn[$this->_tableLevel] = $column; 176 177 return $this->_nestedColumn[$this->_tableLevel]; 178 } 179 180 private function _getTableStartColumn() { 181 return $this->_nestedColumn[$this->_tableLevel]; 182 } 183 184 private function _releaseTableStartColumn() { 185 --$this->_tableLevel; 186 return array_pop($this->_nestedColumn); 187 } 188 189 private function _flushCell($sheet,$column,$row,&$cellContent) { 190 if (is_string($cellContent)) { 191 // Simple String content 192 if (trim($cellContent) > '') { 193 // Only actually write it if there's content in the string 194 // echo 'FLUSH CELL: ' , $column , $row , ' => ' , $cellContent , '<br />'; 195 // Write to worksheet to be done here... 196 // ... we return the cell so we can mess about with styles more easily 197 $cell = $sheet->setCellValue($column.$row,$cellContent,true); 198 $this->_dataArray[$row][$column] = $cellContent; 199 } 200 } else { 201 // We have a Rich Text run 202 // TODO 203 $this->_dataArray[$row][$column] = 'RICH TEXT: ' . $cellContent; 204 } 205 $cellContent = (string) ''; 206 } 207 208 private function _processDomElement(DOMNode $element, $sheet, &$row, &$column, &$cellContent){ 209 foreach($element->childNodes as $child){ 210 if ($child instanceof DOMText) { 211 $domText = preg_replace('/\s+/',' ',trim($child->nodeValue)); 212 if (is_string($cellContent)) { 213 // simply append the text if the cell content is a plain text string 214 $cellContent .= $domText; 215 } else { 216 // but if we have a rich text run instead, we need to append it correctly 217 // TODO 218 } 219 } elseif($child instanceof DOMElement) { 220 // echo '<b>DOM ELEMENT: </b>' , strtoupper($child->nodeName) , '<br />'; 221 222 $attributeArray = array(); 223 foreach($child->attributes as $attribute) { 224 // echo '<b>ATTRIBUTE: </b>' , $attribute->name , ' => ' , $attribute->value , '<br />'; 225 $attributeArray[$attribute->name] = $attribute->value; 226 } 227 228 switch($child->nodeName) { 229 case 'meta' : 230 foreach($attributeArray as $attributeName => $attributeValue) { 231 switch($attributeName) { 232 case 'content': 233 // TODO 234 // Extract character set, so we can convert to UTF-8 if required 235 break; 236 } 237 } 238 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 239 break; 240 case 'title' : 241 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 242 $sheet->setTitle($cellContent); 243 $cellContent = ''; 244 break; 245 case 'span' : 246 case 'div' : 247 case 'font' : 248 case 'i' : 249 case 'em' : 250 case 'strong': 251 case 'b' : 252 // echo 'STYLING, SPAN OR DIV<br />'; 253 if ($cellContent > '') 254 $cellContent .= ' '; 255 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 256 if ($cellContent > '') 257 $cellContent .= ' '; 258 // echo 'END OF STYLING, SPAN OR DIV<br />'; 259 break; 260 case 'hr' : 261 $this->_flushCell($sheet,$column,$row,$cellContent); 262 ++$row; 263 if (isset($this->_formats[$child->nodeName])) { 264 $sheet->getStyle($column.$row)->applyFromArray($this->_formats[$child->nodeName]); 265 } else { 266 $cellContent = '----------'; 267 $this->_flushCell($sheet,$column,$row,$cellContent); 268 } 269 ++$row; 270 case 'br' : 271 if ($this->_tableLevel > 0) { 272 // If we're inside a table, replace with a \n 273 $cellContent .= "\n"; 274 } else { 275 // Otherwise flush our existing content and move the row cursor on 276 $this->_flushCell($sheet,$column,$row,$cellContent); 277 ++$row; 278 } 279 // echo 'HARD LINE BREAK: ' , '<br />'; 280 break; 281 case 'a' : 282 // echo 'START OF HYPERLINK: ' , '<br />'; 283 foreach($attributeArray as $attributeName => $attributeValue) { 284 switch($attributeName) { 285 case 'href': 286 // echo 'Link to ' , $attributeValue , '<br />'; 287 $sheet->getCell($column.$row)->getHyperlink()->setUrl($attributeValue); 288 if (isset($this->_formats[$child->nodeName])) { 289 $sheet->getStyle($column.$row)->applyFromArray($this->_formats[$child->nodeName]); 290 } 291 break; 292 } 293 } 294 $cellContent .= ' '; 295 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 296 // echo 'END OF HYPERLINK:' , '<br />'; 297 break; 298 case 'h1' : 299 case 'h2' : 300 case 'h3' : 301 case 'h4' : 302 case 'h5' : 303 case 'h6' : 304 case 'ol' : 305 case 'ul' : 306 case 'p' : 307 if ($this->_tableLevel > 0) { 308 // If we're inside a table, replace with a \n 309 $cellContent .= "\n"; 310 // echo 'LIST ENTRY: ' , '<br />'; 311 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 312 // echo 'END OF LIST ENTRY:' , '<br />'; 313 } else { 314 if ($cellContent > '') { 315 $this->_flushCell($sheet,$column,$row,$cellContent); 316 $row += 2; 317 } 318 // echo 'START OF PARAGRAPH: ' , '<br />'; 319 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 320 // echo 'END OF PARAGRAPH:' , '<br />'; 321 $this->_flushCell($sheet,$column,$row,$cellContent); 322 323 if (isset($this->_formats[$child->nodeName])) { 324 $sheet->getStyle($column.$row)->applyFromArray($this->_formats[$child->nodeName]); 325 } 326 327 $row += 2; 328 $column = 'A'; 329 } 330 break; 331 case 'li' : 332 if ($this->_tableLevel > 0) { 333 // If we're inside a table, replace with a \n 334 $cellContent .= "\n"; 335 // echo 'LIST ENTRY: ' , '<br />'; 336 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 337 // echo 'END OF LIST ENTRY:' , '<br />'; 338 } else { 339 if ($cellContent > '') { 340 $this->_flushCell($sheet,$column,$row,$cellContent); 341 } 342 ++$row; 343 // echo 'LIST ENTRY: ' , '<br />'; 344 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 345 // echo 'END OF LIST ENTRY:' , '<br />'; 346 $this->_flushCell($sheet,$column,$row,$cellContent); 347 $column = 'A'; 348 } 349 break; 350 case 'table' : 351 $this->_flushCell($sheet,$column,$row,$cellContent); 352 $column = $this->_setTableStartColumn($column); 353 // echo 'START OF TABLE LEVEL ' , $this->_tableLevel , '<br />'; 354 if ($this->_tableLevel > 1) 355 --$row; 356 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 357 // echo 'END OF TABLE LEVEL ' , $this->_tableLevel , '<br />'; 358 $column = $this->_releaseTableStartColumn(); 359 if ($this->_tableLevel > 1) { 360 ++$column; 361 } else { 362 ++$row; 363 } 364 break; 365 case 'thead' : 366 case 'tbody' : 367 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 368 break; 369 case 'tr' : 370 ++$row; 371 $column = $this->_getTableStartColumn(); 372 $cellContent = ''; 373 // echo 'START OF TABLE ' , $this->_tableLevel , ' ROW<br />'; 374 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 375 // echo 'END OF TABLE ' , $this->_tableLevel , ' ROW<br />'; 376 break; 377 case 'th' : 378 case 'td' : 379 // echo 'START OF TABLE ' , $this->_tableLevel , ' CELL<br />'; 380 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 381 // echo 'END OF TABLE ' , $this->_tableLevel , ' CELL<br />'; 382 $this->_flushCell($sheet,$column,$row,$cellContent); 383 ++$column; 384 break; 385 case 'body' : 386 $row = 1; 387 $column = 'A'; 388 $content = ''; 389 $this->_tableLevel = 0; 390 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 391 break; 392 default: 393 $this->_processDomElement($child,$sheet,$row,$column,$cellContent); 394 } 395 } 396 } 397 } 398 399 /** 400 * Loads PHPExcel from file into PHPExcel instance 401 * 402 * @param string $pFilename 403 * @param PHPExcel $objPHPExcel 404 * @return PHPExcel 405 * @throws PHPExcel_Reader_Exception 406 */ 407 public function loadIntoExisting($pFilename, PHPExcel $objPHPExcel) 408 { 409 // Open file to validate 410 $this->_openFile($pFilename); 411 if (!$this->_isValidFormat()) { 412 fclose ($this->_fileHandle); 413 throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid HTML file."); 414 } 415 // Close after validating 416 fclose ($this->_fileHandle); 417 418 // Create new PHPExcel 419 while ($objPHPExcel->getSheetCount() <= $this->_sheetIndex) { 420 $objPHPExcel->createSheet(); 421 } 422 $objPHPExcel->setActiveSheetIndex( $this->_sheetIndex ); 423 424 // Create a new DOM object 425 $dom = new domDocument; 426 // Reload the HTML file into the DOM object 427 $loaded = $dom->loadHTMLFile($pFilename, PHPExcel_Settings::getLibXmlLoaderOptions()); 428 if ($loaded === FALSE) { 429 throw new PHPExcel_Reader_Exception('Failed to load ',$pFilename,' as a DOM Document'); 430 } 431 432 // Discard white space 433 $dom->preserveWhiteSpace = false; 434 435 436 $row = 0; 437 $column = 'A'; 438 $content = ''; 439 $this->_processDomElement($dom,$objPHPExcel->getActiveSheet(),$row,$column,$content); 440 441 // echo '<hr />'; 442 // var_dump($this->_dataArray); 443 444 // Return 445 return $objPHPExcel; 446 } 447 448 /** 449 * Get sheet index 450 * 451 * @return int 452 */ 453 public function getSheetIndex() { 454 return $this->_sheetIndex; 455 } 456 457 /** 458 * Set sheet index 459 * 460 * @param int $pValue Sheet index 461 * @return PHPExcel_Reader_HTML 462 */ 463 public function setSheetIndex($pValue = 0) { 464 $this->_sheetIndex = $pValue; 465 return $this; 466 } 467 468 }
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| Generated: Fri Nov 28 20:29:05 2014 | Cross-referenced by PHPXref 0.7.1 |